PDF malware analysis — malicious · cfee478f60ef7bf2

MALICIOUS

PDF

11.8 KB

MD5: ab1b2f093ba5864aa848b7395ebe8898 SHA-1: 63bcbbf6d499196346cc1390a94e29d3c0fde906 SHA-256: cfee478f60ef7bf230e0f4b3bd67f13f23cb20c7dd3d48a4914f4dc0dff77ead

138 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings including 'PDF_JAVASCRIPT' and 'PDF_JS'. The critical 'CVE_2007_5659' heuristic specifically points to the use of 'collab.collectEmailInfo' for JavaScript execution, a known method for exploiting PDF vulnerabilities. The file was also detected by ClamAV as 'Pdf.Exploit.Agent-36065'. The deobfuscated JavaScript files suggest a multi-stage execution process, likely to download and run a secondary payload.

Heuristics 5

Collab.collectEmailInfo — CVE-2007-5659 critical CVE exact CVE_2007_5659

PDF JavaScript calls Collab.collectEmailInfo — CVE-2007-5659 is a buffer overflow in Adobe Reader triggered by a long argument or heap-sprayed message field passed to Collab.collectEmailInfo(). Part of a series of Acrobat JS API exploits. (identified after JavaScript deobfuscation)
ClamAV: Pdf.Exploit.Agent-36065 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36065
JavaScript action low PDF_JAVASCRIPT

PDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
Embedded JS stream low PDF_JS

PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
Suspicious extracted artifact info EXTRACTED_FILE_STATIC_TRIAGE

One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0007_000.js` `9c67560e8c63b720885d3efc1627b844b86a6ec08e99e5b65a22eae832045756`	pdf-javascript-stream	PDF /JS object 7 at offset 0x19C	431 bytes
`legacy_pdfkit_stage_000.js` `ca755c250904a8bbd559fd0d4a201ab2dc9e5f27976bab8f660e55b294237f35`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x315	12118 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`legacy_pdfkit_stage_001.js` `0059b8dab815fb8f695cd96d2be07fa818b0b533b01fd6bcdb2fe4095522b3be`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x315	4967 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 5 eval/decoder/string-building token(s).

Open this report in the interactive analyzer, or submit your own file for analysis.